[dovecot/core] 7d4c80: lib-fts: Add lib-fts to CPPFLAGS as include dir

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 7d4c8041ab63e6a1bf17a9b2bb11dd18634971e2
      https://github.com/dovecot/core/commit/7d4c8041ab63e6a1bf17a9b2bb11dd18634971e2
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2016-01-15 (Fri, 15 Jan 2016)

  Changed paths:
    M src/lib-fts/Makefile.am

  Log Message:
  -----------
  lib-fts: Add lib-fts to CPPFLAGS as include dir

Without this, VPATH builds fail because the includes cannot be
found as they are not on same directory.